Patients told by their physicians they were overweight or obese were more likely to acknowledge a weight problem and try to do something about it, a new study shows. Researchers from the Medical University of South Carolina and Imperial College London found that getting an honest assessment from a physician appeared to be a key factor in whether or not study participants considered themselves overweight. Among the participants who were overweight according to their body mass indexes and didn't report hearing that news from a physician, almost 37% didn't think they were overweight. And 19% of obese participants whose physicians didn't talk to them about weight said they didn't think they were overweight.